static inline void
hscx_interrupt(struct IsdnCardState *cs, u8 val, u8 hscx)
{
u8 r;
struct BCState *bcs = cs->bcs + hscx;
int fifo_size = test_bit(HW_IPAC, &cs->HW_Flags)? 64: 32;
int count;
if (!test_bit(BC_FLG_INIT, &bcs->Flag))
return;
if (val & 0x80) { /* RME */
r = hscx_read(bcs, HSCX_RSTA);
if ((r & 0xf0) != 0xa0) {
if (!(r & 0x80)) {
if (cs->debug & L1_DEB_WARN)
debugl1(cs, "HSCX invalid frame");
#ifdef ERROR_STATISTIC
bcs->err_inv++;
#endif
}
if ((r & 0x40) && bcs->mode) {
if (cs->debug & L1_DEB_WARN)
debugl1(cs, "HSCX RDO mode=%d",
bcs->mode);
#ifdef ERROR_STATISTIC
bcs->err_rdo++;
#endif
}
if (!(r & 0x20)) {
if (cs->debug & L1_DEB_WARN)
debugl1(cs, "HSCX CRC error");
#ifdef ERROR_STATISTIC
bcs->err_crc++;
#endif
}
WriteHSCXCMDR(bcs, 0x80);
bcs->rcvidx = 0;
} else {
count = hscx_read(bcs, HSCX_RBCL) & (fifo_size-1);
if (count == 0)
count = fifo_size;
hscx_empty_fifo(bcs, count);
recv_rme_b(bcs);
}
}
if (val & 0x40) { /* RPF */
hscx_empty_fifo(bcs, fifo_size);
recv_rpf_b(bcs);
}
if (val & 0x10) {
xmit_xpr_b(bcs);
}
}
static void
hscx_interrupt(struct IsdnCardState *cs, u_char val, u_char hscx)
{
u_char r;
struct BCState *bcs = cs->bcs + hscx;
struct sk_buff *skb;
int fifo_size = test_bit(HW_IPAC, &cs->HW_Flags)? 64: 32;
int count;
if (!test_bit(BC_FLG_INIT, &bcs->Flag))
return;
if (val & 0x80) { /* RME */
r = READHSCX(cs, hscx, HSCX_RSTA);
if ((r & 0xf0) != 0xa0) {
if (!(r & 0x80)) {
if (cs->debug & L1_DEB_WARN)
debugl1(cs, "HSCX invalid frame");
#ifdef ERROR_STATISTIC
bcs->err_inv++;
#endif
}
if ((r & 0x40) && bcs->mode) {
if (cs->debug & L1_DEB_WARN)
debugl1(cs, "HSCX RDO mode=%d",
bcs->mode);
#ifdef ERROR_STATISTIC
bcs->err_rdo++;
#endif
}
if (!(r & 0x20)) {
if (cs->debug & L1_DEB_WARN)
debugl1(cs, "HSCX CRC error");
#ifdef ERROR_STATISTIC
bcs->err_crc++;
#endif
}
WriteHSCXCMDR(cs, hscx, 0x80);
} else {
count = READHSCX(cs, hscx, HSCX_RBCL) & (
test_bit(HW_IPAC, &cs->HW_Flags)? 0x3f: 0x1f);
if (count == 0)
count = fifo_size;
hscx_empty_fifo(bcs, count);
if ((count = bcs->hw.hscx.rcvidx - 1) > 0) {
if (cs->debug & L1_DEB_HSCX_FIFO)
debugl1(cs, "HX Frame %d", count);
if (!(skb = dev_alloc_skb(count)))
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_WARNING "HSCX: receive out of memory\n");
#else
;
#endif
else {
memcpy(skb_put(skb, count), bcs->hw.hscx.rcvbuf, count);
skb_queue_tail(&bcs->rqueue, skb);
}
}
}
static inline void mixcom_receive_frame(struct net_device *dev)
{
struct comx_channel *ch=dev->priv;
struct mixcom_privdata *hw=ch->HW_privdata;
register byte rsta;
register word length;
rsta = rd_hscx(dev, HSCX_RSTA) & (HSCX_VFR | HSCX_RDO |
HSCX_CRC | HSCX_RAB);
length = ((rd_hscx(dev, HSCX_RBCH) & 0x0f) << 8) |
rd_hscx(dev, HSCX_RBCL);
if ( length > hw->rx_ptr ) {
hscx_empty_fifo(dev, length - hw->rx_ptr);
}
if (!(rsta & HSCX_VFR)) {
ch->stats.rx_length_errors++;
}
if (rsta & HSCX_RDO) {
ch->stats.rx_over_errors++;
}
if (!(rsta & HSCX_CRC)) {
ch->stats.rx_crc_errors++;
}
if (rsta & HSCX_RAB) {
ch->stats.rx_frame_errors++;
}
ch->stats.rx_packets++;
ch->stats.rx_bytes += length;
if (rsta == (HSCX_VFR | HSCX_CRC) && hw->recving) {
skb_trim(hw->recving, hw->rx_ptr - 1);
if (ch->debug_flags & DEBUG_HW_RX) {
comx_debug_skb(dev, hw->recving,
"MIXCOM_interrupt receiving");
}
hw->recving->dev = dev;
if (ch->LINE_rx) {
ch->LINE_rx(dev, hw->recving);
}
}
else if(hw->recving) {
kfree_skb(hw->recving);
}
hw->recving = NULL;
hw->rx_ptr = 0;
}
static inline void
hscx_interrupt(struct IsdnCardState *cs, u_char val, u_char hscx)
{
u_char r;
struct BCState *bcs = cs->bcs + hscx;
struct sk_buff *skb;
int fifo_size = test_bit(HW_IPAC, &cs->HW_Flags)? 64: 32;
int count;
if (!test_bit(BC_FLG_INIT, &bcs->Flag))
return;
if (val & 0x80) { /* RME */
r = READHSCX(cs, hscx, HSCX_RSTA);
if ((r & 0xf0) != 0xa0) {
if (!(r & 0x80)) {
if (cs->debug & L1_DEB_WARN)
debugl1(cs, "HSCX invalid frame");
#ifdef ERROR_STATISTIC
bcs->err_inv++;
#endif
}
if ((r & 0x40) && bcs->mode) {
if (cs->debug & L1_DEB_WARN)
debugl1(cs, "HSCX RDO mode=%d",
bcs->mode);
#ifdef ERROR_STATISTIC
bcs->err_rdo++;
#endif
}
if (!(r & 0x20)) {
if (cs->debug & L1_DEB_WARN)
debugl1(cs, "HSCX CRC error");
#ifdef ERROR_STATISTIC
bcs->err_crc++;
#endif
}
WriteHSCXCMDR(cs, hscx, 0x80);
} else {
count = READHSCX(cs, hscx, HSCX_RBCL) & (
test_bit(HW_IPAC, &cs->HW_Flags)? 0x3f: 0x1f);
if (count == 0)
count = fifo_size;
hscx_empty_fifo(bcs, count);
if ((count = bcs->hw.hscx.rcvidx - 1) > 0) {
if (cs->debug & L1_DEB_HSCX_FIFO)
debugl1(cs, "HX Frame %d", count);
if (!(skb = dev_alloc_skb(count)))
printk(KERN_WARNING "HSCX: receive out of memory\n");
else {
memcpy(skb_put(skb, count), bcs->hw.hscx.rcvbuf, count);
skb_queue_tail(&bcs->rqueue, skb);
}
}
}
bcs->hw.hscx.rcvidx = 0;
hscx_sched_event(bcs, B_RCVBUFREADY);
}
if (val & 0x40) { /* RPF */
hscx_empty_fifo(bcs, fifo_size);
if (bcs->mode == L1_MODE_TRANS) {
/* receive audio data */
if (!(skb = dev_alloc_skb(fifo_size)))
printk(KERN_WARNING "HiSax: receive out of memory\n");
else {
memcpy(skb_put(skb, fifo_size), bcs->hw.hscx.rcvbuf, fifo_size);
skb_queue_tail(&bcs->rqueue, skb);
}
bcs->hw.hscx.rcvidx = 0;
hscx_sched_event(bcs, B_RCVBUFREADY);
}
}
if (val & 0x10) { /* XPR */
if (bcs->tx_skb) {
if (bcs->tx_skb->len) {
hscx_fill_fifo(bcs);
return;
} else {
if (bcs->st->lli.l1writewakeup &&
(PACKET_NOACK != bcs->tx_skb->pkt_type))
bcs->st->lli.l1writewakeup(bcs->st, bcs->hw.hscx.count);
dev_kfree_skb_irq(bcs->tx_skb);
bcs->hw.hscx.count = 0;
bcs->tx_skb = NULL;
}
}
if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
bcs->hw.hscx.count = 0;
test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
hscx_fill_fifo(bcs);
} else {
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
hscx_sched_event(bcs, B_XMTBUFREADY);
}
}
}
static inline void
hscx_interrupt(struct IsdnCardState *sp, u_char val, u_char hscx)
{
u_char r;
struct HscxState *hsp = sp->hs + hscx;
struct sk_buff *skb;
int count;
char tmp[32];
if (!hsp->init)
return;
if (val & 0x80) { /* RME */
r = HscxReadReg(sp->hscx[hsp->hscx], hscx, HSCX_RSTA);
if ((r & 0xf0) != 0xa0) {
if (!(r & 0x80))
if (sp->debug & L1_DEB_WARN)
debugl1(sp, "HSCX invalid frame");
if ((r & 0x40) && hsp->mode)
if (sp->debug & L1_DEB_WARN) {
sprintf(tmp, "HSCX RDO mode=%d",
hsp->mode);
debugl1(sp, tmp);
}
if (!(r & 0x20))
if (sp->debug & L1_DEB_WARN)
debugl1(sp, "HSCX CRC error");
writehscxCMDR(sp->hscx[hsp->hscx], hsp->hscx, 0x80);
} else {
count = HscxReadReg(sp->hscx[hsp->hscx], hscx, HSCX_RBCL) & 0x1f;
if (count == 0)
count = 32;
hscx_empty_fifo(hsp, count);
if ((count = hsp->rcvidx - 1) > 0) {
if (sp->debug & L1_DEB_HSCX_FIFO) {
sprintf(tmp, "HX Frame %d", count);
debugl1(sp, tmp);
}
if (!(skb = dev_alloc_skb(count)))
printk(KERN_WARNING "IX1: receive out of memory\n");
else {
memcpy(skb_put(skb, count), hsp->rcvbuf, count);
skb_queue_tail(&hsp->rqueue, skb);
}
}
}
hsp->rcvidx = 0;
hscx_sched_event(hsp, HSCX_RCVBUFREADY);
}
if (val & 0x40) { /* RPF */
hscx_empty_fifo(hsp, 32);
if (hsp->mode == 1) {
/* receive audio data */
if (!(skb = dev_alloc_skb(32)))
printk(KERN_WARNING "IX1: receive out of memory\n");
else {
memcpy(skb_put(skb, 32), hsp->rcvbuf, 32);
skb_queue_tail(&hsp->rqueue, skb);
}
hsp->rcvidx = 0;
hscx_sched_event(hsp, HSCX_RCVBUFREADY);
}
}
if (val & 0x10) { /* XPR */
if (hsp->tx_skb)
if (hsp->tx_skb->len) {
hscx_fill_fifo(hsp);
return;
} else {
dev_kfree_skb(hsp->tx_skb, FREE_WRITE);
hsp->count = 0;
if (hsp->st->l4.l1writewakeup)
hsp->st->l4.l1writewakeup(hsp->st);
hsp->tx_skb = NULL;
}
if ((hsp->tx_skb = skb_dequeue(&hsp->squeue))) {
hsp->count = 0;
hscx_fill_fifo(hsp);
} else
hscx_sched_event(hsp, HSCX_XMTBUFREADY);
}
}
static void MIXCOM_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
unsigned long flags;
struct net_device *dev = (struct net_device *)dev_id;
struct comx_channel *ch, *twin_ch;
struct mixcom_privdata *hw, *twin_hw;
register unsigned char ista;
if (dev==NULL) {
printk(KERN_ERR "comx_interrupt: irq %d for unknown device\n",irq);
return;
}
ch = dev->priv;
hw = ch->HW_privdata;
save_flags(flags); cli();
while((ista = (rd_hscx(dev, HSCX_ISTA) & (HSCX_RME | HSCX_RPF |
HSCX_XPR | HSCX_EXB | HSCX_EXA | HSCX_ICA)))) {
register byte ista2 = 0;
if (ista & HSCX_RME) {
mixcom_receive_frame(dev);
}
if (ista & HSCX_RPF) {
hscx_empty_fifo(dev, 32);
}
if (ista & HSCX_XPR) {
if (hw->tx_ptr) {
hscx_fill_fifo(dev);
} else {
clear_bit(0, &hw->txbusy);
ch->LINE_tx(dev);
}
}
if (ista & HSCX_EXB) {
mixcom_extended_interrupt(dev);
}
if ((ista & HSCX_EXA) && ch->twin) {
mixcom_extended_interrupt(ch->twin);
}
if ((ista & HSCX_ICA) && ch->twin &&
(ista2 = rd_hscx(ch->twin, HSCX_ISTA) &
(HSCX_RME | HSCX_RPF | HSCX_XPR ))) {
if (ista2 & HSCX_RME) {
mixcom_receive_frame(ch->twin);
}
if (ista2 & HSCX_RPF) {
hscx_empty_fifo(ch->twin, 32);
}
if (ista2 & HSCX_XPR) {
twin_ch=ch->twin->priv;
twin_hw=twin_ch->HW_privdata;
if (twin_hw->tx_ptr) {
hscx_fill_fifo(ch->twin);
} else {
clear_bit(0, &twin_hw->txbusy);
ch->LINE_tx(ch->twin);
}
}
}
}
restore_flags(flags);
return;
}
